DataGridViewColumnConverter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / DataGridViewColumnConverter.cs / 1 / DataGridViewColumnConverter.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

/* 
 */ 
namespace System.Windows.Forms {
    using System.Runtime.Serialization.Formatters; 
    using System.Runtime.Remoting;
    using System.Runtime.InteropServices;

    using Microsoft.Win32; 
    using System.Collections;
    using System.ComponentModel; 
    using System.ComponentModel.Design.Serialization; 
    using System.Drawing;
    using System.Diagnostics; 
    using System.Globalization;
    using System.Reflection;

    internal class DataGridViewColumnConverter : ExpandableObjectConverter { 

        public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { 
            if (destinationType == typeof(InstanceDescriptor)) { 
                return true;
            } 
            return base.CanConvertTo(context, destinationType);
        }

        ///  
        ///      Converts the given object to another type.  The most common types to convert
        ///      are to and from a string object.  The default implementation will make a call 
        ///      to ToString on the object if the object is valid and if the destination 
        ///      type is string.  If this cannot convert to the desitnation type, this will
        ///      throw a NotSupportedException. 
        /// 
        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
            if (destinationType == null) {
                throw new ArgumentNullException("destinationType"); 
            }
 
            DataGridViewColumn dataGridViewColumn = value as DataGridViewColumn; 
            if (destinationType == typeof(InstanceDescriptor) && dataGridViewColumn != null) {
                ConstructorInfo ctor; 

                // public DataGridViewColumn(Type cellType)
                //
                if (dataGridViewColumn.CellType != null) { 
                    ctor = dataGridViewColumn.GetType().GetConstructor(new Type[] { typeof(Type) });
                    if (ctor != null) { 
                        return new InstanceDescriptor(ctor, new object[] { dataGridViewColumn.CellType }, false); 
                    }
                } 

                // public DataGridViewColumn()
                //
                ctor = dataGridViewColumn.GetType().GetConstructor(new Type[0]); 
                if (ctor != null) {
                    return new InstanceDescriptor(ctor, new object[0], false); 
                } 
            }
 
            return base.ConvertTo(context, culture, value, destinationType);
        }
    }
} 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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